The ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}$(α${,}^2$He${)}^{210}$Pb reaction has been investigated at about 55 MeV incident energy. The angular distributions of prominent transitions were analyzed with the distorted-wave Born approximation. At low excitation energies, states built on 2${\mathit{g}}_{9/2}$ single-particle strength are found, while at higher energies configurations including 1${\mathit{j}}_{15/2}$ strength dominate. Together with the predictions of the crude shell model the main configurations of most observed transitions were identified. The results are compared to shell-model calculations with the Kuo-Herling residual interaction modified by Warburton and Brown.

• Received 28 August 1992

DOI:https://doi.org/10.1103/PhysRevC.47.1027